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Home / Liquid Crystals, Volume 38, Number 3

Optical activity of the anisotropic solutions of cellulose acetates in mesophasogenic solvents

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Authors: Shipovskaya, Anna 1 ; Shmakov, Sergei 1 ; Kazmicheva, Olga 1 ; Shchyogolev, Sergei Yu. 2 ; 

Source: Liquid Crystals, Volume 38, Number 3, March 2011, pp. 361-369(9)

Publisher: Taylor and Francis Ltd

DOI: https://doi.org/10.1080/02678292.2010.547951

The optical activity of the cholesteric liquid crystalline phases of solutions of cellulose diacetate in nitromethane and dimethylsulfoxide was studied. These systems exhibited optical activity anisotropy (i.e. the value of the specific optical rotation [α] varied with the orientation of the specimen). The contributions of the isotropic component and the anisotropic components of [α] were identified. The harmonic decomposition of the anisotropic component identified the separate contributions from the primary and secondary structures of the polymer and from the supramolecular twisted helicoidal structure of the cholesteric phase.

Keywords: chiral; disorder; optical activity; optics; polysaccharides; solution properties; supramolecular structures

Document Type: Research Article

Affiliations: 1: Institute of Chemistry, N.G. Chernyshevsky Saratov State University, Saratov, Russian Federation 2: Institute of Chemistry, N.G. Chernyshevsky Saratov State University, Saratov, Russian Federation,Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, Saratov, Russian Federation

Publication date: 01 March 2011

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